From the inside cover:
CASTLE CAELDO IS HAUNTED!!
The once proud castle of the Barons of Caeldo is a tumbling ruin, populated by rats and hawks. 'Tis said that demons inhabit the cold corridors of the castle and the pits below, and that to spend a night within its walls is to risk horrible death (but that's just a silly old wives' tale!).
The King in Tualyn is offering 10,000 pieces of gold to anyone who can spend a week in the old ruin -- and a title and the Barony! Think of it! a fortune for sleeping in an old castle and fighting off a few mice and birds! And the rumors of treasure within its walls -- magical artifacts, huge piles of gold and jewelry, fabulous rugs and tapestries, all sorts of treasure! Just spend a week cleaning up the castle, dusting off the cobwebs, stomping an occasional rat, and the Barony, the castle, and all its treasures are yours!